Java海康SDK二次开发的高效工作流程

import com.sun.jna.NativeLong;
import com.hikvision.netsdk.*;

public class SDKInit {

    public static void main(String[] args) {
        // 初始化SDK
        boolean initSuc = HCNetSDK.INSTANCE.NET_DVR_Init();
        if (initSuc){
            System.out.println("SDK初始化成功");
        } else {
            System.out.println("SDK初始化失败");
        }
        
        // 设置报警回调函数
        HCNetSDK.FMSGCallBack fMsgCallBack = (lCommand, pAlarmer, pAlarmInfo, dwBufLen, pUser) -> {
            // 处理报警信息
        };
        NativeLong lUser = new NativeLong(1);
        HCNetSDK.INSTANCE.NET_DVR_SetDVRMessageCallBack_V31(fMsgCallBack, lUser);
        
        // 设置异常回调函数
        HCNetSDK.FExceptionCallBack fExceptionCallBack = (dwType, lUserID, lHandle, pUser) -> {
            // 处理异常信息
        };
        HCNetSDK.INSTANCE.NET_DVR_SetExceptionCallBack_V30(0, lUser, fExceptionCallBack, null);
        
        // 其他初始化设置...
    }
}

public class DeviceConnection {

    public static HCNetSDK.NET_DVR_DEVICEINFO_V30 login(String ip, int port, String username, String password) {
        // 设备初始化
        HCNetSDK.NET_DVR_Init();

        // 登录设备
        HCNetSDK.NET_DVR_DEVICEINFO_V30 deviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V30();
        NativeLong lUserID = HCNetSDK.INSTANCE.NET_DVR_Login_V30(ip, port, username, password, deviceInfo);

        if (lUserID.longValue() == -1) {
            System.out.println("登录设备失败：" + HCNetSDK.INSTANCE.NET_DVR_GetLastError());
        } else {
            System.out.println("登录设备成功");
        }

        return deviceInfo;
    }
}

public class DeviceOperation {

    public static void getDeviceInfo(HCNetSDK.NET_DVR_DEVICEINFO_V30 deviceInfo) {
        System.out.println("设备名称：" + new String(deviceInfo.sDVRName));
        System.out.println("设备编号：" + deviceInfo.getStruDeviceV30().byDeviceSerialNumber.seriaNumber);
        // 其他设备信息...
    }

    public static void livePreview(NativeLong lUserID) {
        HCNetSDK.NET_DVR_PREVIEWINFO previewInfo = new HCNetSDK.NET_DVR_PREVIEWINFO();
        previewInfo.lChannel = new NativeLong(1); // 预览通道号
        previewInfo.dwStreamType = 0; // 码流类型，0-主码流，1-子码流
        previewInfo.dwLinkMode = 0x0000; // 是否录像，0x0000-不录像，0x0001-录像
        previewInfo.hPlayWnd = null; // 预览窗口

        NativeLong lPlayHandle = HCNetSDK.INSTANCE.NET_DVR_RealPlay_V40(lUserID, previewInfo, null, null);
        if (lPlayHandle.longValue() == -1) {
            System.out.println("预览失败：" + HCNetSDK.INSTANCE.NET_DVR_GetLastError());
        } else {
            System.out.println("预览成功");
        }
    }

    public static void capturePicture(NativeLong lUserID, String savePath) {
        HCNetSDK.NET_DVR_JPEGPARA jpegPara = new HCNetSDK.NET_DVR_JPEGPARA();
        jpegPara.wPicQuality = 2; // 图片质量，2-高质量，1-中等质量，0-低质量
        jpegPara.wPicSize = 0; // 图片分辨率，0-最高分辨率

        if (HCNetSDK.INSTANCE.NET_DVR_CaptureJPEGPicture(lUserID, 1, jpegPara, savePath)) {
            System.out.println("抓图成功");
        } else {
            System.out.println("抓图失败：" + HCNetSDK.INSTANCE.NET_DVR_GetLastError());
        }
    }

    // 其他设备操作...
}

public class SDKRelease {

    public static void main(String[] args) {
        // 登出设备
        NativeLong lUserID = new NativeLong(1);
        if (HCNetSDK.INSTANCE.NET_DVR_Logout_V30(lUserID)) {
            System.out.println("登出设备成功");
        } else {
            System.out.println("登出设备失败：" + HCNetSDK.INSTANCE.NET_DVR_GetLastError());
        }

        // 释放SDK资源
        HCNetSDK.INSTANCE.NET_DVR_Cleanup();
        System.out.println("释放SDK资源");
    }
}